Refund not yet paid after 2 months

I bought a product online on Black Friday. On 30 Nov 2018 I was informed that there were a glitch on the system and that Toys r us does not have stock and that they will be refunding me within 5-10 working days. On 28 December I followed up on the refund. On 3 January 2019 after some phone calls I was informed that the refund has not been processed due to Toys R Us not having my banking details (this was the first they told me this after already waiting almost 1 month for the refund). After an email to them on 3 January, i only received a response from them on 8 January (again after numerous phone calls and emails). On the 9th of January I had to resend my banking details to them. On the 9th of January it was confirmed on email that they received the banking details. On 14 January I still have not received the refund and followed up yet again. On 15 January i received an email saying my refund has been actioned and will take 5-10 working days to reflect in my account. on Phoning Toys R Us again on 29 January, I was informed that the refund was only actioned round about the 22nd of January and that the refund will take another 5-10 working days. This is totally unacceptable... to wait more than two months for a refund...